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annotate src/os_cpu/linux_sparc/vm/thread_linux_sparc.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 133 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| 133 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 133 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef OS_CPU_LINUX_SPARC_VM_THREAD_LINUX_SPARC_HPP |
| 26 #define OS_CPU_LINUX_SPARC_VM_THREAD_LINUX_SPARC_HPP | |
| 27 | |
| 133 | 28 private: |
| 29 | |
| 30 void pd_initialize() { | |
| 31 _anchor.clear(); | |
| 32 _base_of_stack_pointer = NULL; | |
| 33 } | |
| 34 | |
| 35 frame pd_last_frame() { | |
| 36 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
| 37 assert(_anchor.walkable(), "thread has not dumped its register windows yet"); | |
| 38 | |
| 39 assert(_anchor.last_Java_pc() != NULL, "Ack no pc!"); | |
| 40 return frame(last_Java_sp(), frame::unpatchable, _anchor.last_Java_pc()); | |
| 41 } | |
| 42 | |
| 43 // Sometimes the trap handler needs to record both PC and NPC. | |
| 44 // This is a SPARC-specific companion to Thread::set_saved_exception_pc. | |
| 45 address _saved_exception_npc; | |
| 46 | |
| 47 // In polling_page_safepoint_handler_blob(s) we have to tail call other | |
| 48 // blobs without blowing any registers. A tail call requires some | |
| 49 // register to jump with and we can't blow any registers, so it must | |
| 50 // be restored in the delay slot. 'restore' cannot be used as it | |
| 51 // will chop the heads off of 64-bit %o registers in the 32-bit | |
| 52 // build. Instead we reload the registers using G2_thread and this | |
| 53 // location. Must be 64bits in the 32-bit LION build. | |
| 54 jdouble _o_reg_temps[6]; | |
| 55 | |
| 56 // a stack pointer older than any java frame stack pointer. It is | |
| 57 // used to validate stack pointers in frame::next_younger_sp (it | |
| 58 // provides the upper bound in the range check). This is necessary | |
| 59 // on Solaris/SPARC since the ucontext passed to a signal handler is | |
| 60 // sometimes corrupt and we need a way to check the extracted sp. | |
| 61 intptr_t* _base_of_stack_pointer; | |
| 62 | |
| 63 public: | |
| 64 | |
| 65 static int o_reg_temps_offset_in_bytes() { return offset_of(JavaThread, _o_reg_temps); } | |
| 66 | |
| 67 #ifndef _LP64 | |
| 68 address o_reg_temps(int i) { return (address)&_o_reg_temps[i]; } | |
| 69 #endif | |
| 70 | |
| 71 static int saved_exception_npc_offset_in_bytes() { return offset_of(JavaThread,_saved_exception_npc); } | |
| 72 | |
| 73 address saved_exception_npc() { return _saved_exception_npc; } | |
| 74 void set_saved_exception_npc(address a) { _saved_exception_npc = a; } | |
| 75 | |
| 76 | |
| 77 public: | |
| 78 | |
| 79 intptr_t* base_of_stack_pointer() { return _base_of_stack_pointer; } | |
| 80 | |
| 81 void set_base_of_stack_pointer(intptr_t* base_sp) { | |
| 82 _base_of_stack_pointer = base_sp; | |
| 83 } | |
| 84 | |
| 85 void record_base_of_stack_pointer() { | |
| 86 intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()())); | |
| 87 intptr_t *ysp; | |
| 88 while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) { | |
| 89 sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS); | |
| 90 } | |
| 91 _base_of_stack_pointer = sp; | |
| 92 } | |
| 93 | |
| 94 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, | |
| 95 bool isInJava); | |
| 96 | |
| 97 // These routines are only used on cpu architectures that | |
| 98 // have separate register stacks (Itanium). | |
| 99 static bool register_stack_overflow() { return false; } | |
| 100 static void enable_register_stack_guard() {} | |
| 101 static void disable_register_stack_guard() {} | |
| 1972 | 102 |
| 103 #endif // OS_CPU_LINUX_SPARC_VM_THREAD_LINUX_SPARC_HPP |